Well the article says it'll be about 40 000 years before Voyager 1 appraches another star as the probe is travelling at some 100 000mph. And the actual date the probe left the solar system was on or abouth the 25th August 2012. But as Trekker said they didn't have the data to confirm it's depature.

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On the continent of wild endeavour in the mountains of solace and solitude there stood the citadel of the time lords, the oldest and most mighty race in the universe looking down on the galaxies below sworn never to interfere only to watch.